Question

To show that pressure increases with decrease in the area of surface

Answer 1

5 example in which pressure increase with decrease in contact area are:-

1.A sharp knife cuts more effectively than a blunt knife as it has a very small  surface area and exerts more pressure.

2.A nail has a pointed edge so that it exerts more thrust or pressure.

3.Tip of a sewing needle.

4.Edge of an arrow.

5.Edges of tools used to pierce things.